The White House is likely to grant U.S. troops on the border with Mexico additional authorities to protect Customs and Border Protection (CBP) personnel if needed, a U.S. official said on Monday. The official, speaking on the condition of anonymity, said a public announcement could come around Tuesday.

Joaquin "El Chapo" Guzman was a ruthless killer who ordered the murder of a man who had refused to shake his hand at a meeting, a prosecution witness told jurors at Guzman's U.S. trial on Monday. Jesus Zambada, the brother of Ismael "El Mayo" Zambada who was Guzman's alleged partner in running the Sinaloa Cartel, gave his most dramatic testimony after three days on the witness stand as he described Guzman's involvement in a series of murders. In a cross-examination, one of Guzman's defense lawyers launched an attack on Zambada's credibility, highlighting inconsistencies between his testimony and his original statements to U.S. prosecutors.

The White House on Monday restored press access for CNN reporter Jim Acosta, ending a legal fight that had so far gone against the Trump administration. White House Press Secretary Sarah Sanders said in a statement the press pass for Acosta, which was revoked after a contentious Nov. 7 news conference with President Donald Trump, was restored but reporters who ignored new rules for news conferences could have their credentials taken away. The White House Correspondents' Association said it had not helped craft the White House's list of rules for news conferences.

Two people were killed and two others critically wounded in a shooting at a Chicago hospital on Monday, and among the dead was the gunman who started shooting in the parking lot and then burst into the medical facility and opened fire, according to local media. A police officer was among those wounded in the shooting on Chicago's South Side at Mercy Hospital, officials said. Police cars and ambulances swarmed the hospital after the shooting.